LDN 1622 – The Boogeyman Nebula (Jari Saukkonen)

Celestial hemisphere: Northern · Constellation: Orion (Ori) · Contains: LDN 1621 · LDN 1622 · VdB62 · VdB63

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LDN 1622 – The Boogeyman Nebula

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LDN 1622 – The Boogeyman Nebula

Fear not, the night sky is not dark, but full of light and color.

This is my first image acquired with NINA, using the new 3.0 beta release and the Target Scheduler plugin. The plugin separates the concepts of how to image (the NINA advanced sequence) and what to image (targets set up in Target Scheduler). Essentially, the sequence stays the same from night to night and TS makes the decision on which targets and frames to shoot at a given time. For remote operation with lots of available imaging time this simplifies the process a lot since I don't have to micromanage targets each night according to the current moon phase etc. In addition it gives some nice options such as preferring to shoot certain frames/targets only around meridian for resolution-sensitive work.

I also experimented with the GHS (GeneralizedHyperbolicStretch, quite a mouthful) for the first time, using it to balance the dark nebulae with the not so empty background sky. The dark nebulae here are indeed much much darker than the background, so a traditional straightforward stretching tended to either crush the dark nebulae to black or make the whole image unbearably light. I would say that graceful handling of the extreme dynamic ranges involved is the most difficult (and one of the most essential) processing skills to have.

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	8972070
PixInsight job	1M0M9DOODXHEC8DJ1GF8PCAXAAPI1Z4B
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h55m16s.54
RA (top/left)	05h53m02s.46
RA (top/right)	05h53m02s.63
RA (bottom/right)	05h57m31s.10
RA (bottom/left)	05h57m30s.43

Dec (center)	+02°01′44″.9
Dec (top/left)	+02°51′56″.7
Dec (top/right)	+01°11′40″.2
Dec (bottom/right)	+01°11′33″.6
Dec (bottom/left)	+02°51′51″.9

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LDN 1622 – The Boogeyman Nebula

LDN 1622 – The Boogeyman Nebula

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Image Index:

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LDN 1622 – The Boogeyman Nebula

LDN 1622 – The Boogeyman Nebula

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